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meriva
3 years ago
6

What is the answer to this?

Mathematics
1 answer:
Mumz [18]3 years ago
7 0

Answer:

35.4

is the answer to this question

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Can someone help? TvT please
zysi [14]

Answer:

I don't know bro actually which question ❓

7 0
3 years ago
A rectangular solid has width w, a length of 7 more than the width, and a height that is equivalent to 15 decreased by 3 times t
dexar [7]

Answer:

For a rectangular solid with:

width = w

length = l

height = h

The volume is equal to:

V = w*l*h

in this case we know that:

width = w.

"length of 7 more than the width"

l = w + 7.

"a height that is equivalent to 15 decreased by 3 times the width."

h = 15 - 3*w

Then the volume will be:

V = w*l*h = w*(w + 7)*(15 - 3w) = (w^2 + 7*w)*(15 - 3*w)

V =  ( -3*w^3 + 15*w^2 + 105*w - 21*w^2)

V = (-3*w^3 - 6*w^2 + 105*w)

Now, the maximum volume will be for the value of w such that:

V'(w) = 0.

and:

V''(W) < 0

Where:

dV/dw = V'(w).

dV'/dw = V''(w)

Then first we need to differentiate the equation for the volume.

V'(w) = dV/dw = ( 3*(-3*w^2) + 2*(-6*w) + 105)

V'(w) = -9*w^2 - 12*w + 105.

Then we need to find the solution for:

-9*w^2 - 12*w + 105 = 0.

We can use the Bhaskara formula, and we will get:

w = \frac{+12 +-\sqrt{(-12)^2 - 4*(-9)*105} }{2*-9}  = \frac{+12 +- 62.6}{-18}

Then the two solutions are:

w₁ = (+12 - 62.6)/(-18) = 2.81

w₂ = (+12 + 62.6)/(-18) = -15.5

But we can not have a negative width, so we can just discard the second solution.

Now let's check the second condition for the maximum, we must have:

V''(2.81) < 0.

V'' = dV'/dw = 2*(-9*w) - 12 = -18*w - 12

V''(2.81) = -18*2.81 - 12 = -62.58 < 0 .

Then the volume is maximized when w = 2.81, and the maximum volume will be:

V(2.81) =  (-3*(2.81)^3 - 6*(2.81)^2 + 105*2.81) = 180.1

 

8 0
3 years ago
Ok so what is is the square root of 1234 i dot know
natita [175]

sqrt(1234) = 35.1283

 you don't say how it should be rounded, so round off as needed

4 0
3 years ago
Select the correct answer.
kifflom [539]

Answer:

<u>I</u><u>t</u><u> </u><u>i</u><u>s</u><u> </u><u>1</u><u>0</u><u>√</u><u>2</u>

Step-by-step explanation:

=  \sqrt{200}  \\  =  \sqrt{2 \times 100}  \\  = ( \sqrt{2} ) \times ( \sqrt{100} ) \\  =  \sqrt{2}  \times 10 \\  = 10 \sqrt{2}

8 0
3 years ago
1/2 of 2/3 = 1/2 of ____ third(s) =____third(s)
adoni [48]
I'll write the equation again with the blanks filled in.

1/2 of 2/3 = 1/2 of two thirds = one third

2/3 is read as two thirds.

Half of 2/3 is 1/3, because 1/3+1/3=2/3

Hope this helps!
6 0
3 years ago
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